Shield case

• US 6,388,189 B1
• Filed: 02/28/2001
• Issued: 05/14/2002
• Est. Priority Date: 03/01/2000
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Onoue, Masami
• Primary Examiner(s): Reichard, Dean A.
• Assistant Examiner(s): Ngo, Hung V
• Application Number:
  US09/797,052
• Publication Number:
  US 20020046850A1
• Time in Patent Office: 440 Days
• Field of Search: 174/35.R, 174/35.GC, 361/800, 361/816, 361/818, 361/718, 361/752
• US Class Current: 174/383
• CPC Class Codes: H05K 7/2039 characterised by the heat transfer by conduction from the heat generating element to a dissipating body arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00
• CPC Class Codes: H05K 7/20436 Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
• CPC Class Codes: H05K 9/006 specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier
• CPC Class Codes: Y10S 174/34 PCB in box or housing

Abstract

A metal shield case which encloses a circuit board 11 on which an electronic circuit part is mounted, shielding electromagnetic wave disturbance, wherein a tongue 15 is provided in a case cover 12a by a cutout in correspondence with a heat generating part 10 mounted on the circuit board 11, the tongue 15 being held in press contact with the heat generating part 10 to allow the heat of the heat generating part to escape to the shield case through the tongue, thereby achieving a heat dissipating effect.

Claims

1. A metal shield case enclosing a circuit board on which an electronic circuit part is mounted for shielding electromagnetic wave disturbance comprising a tongue provided in a surface of the shield case by a cutout, the tongue being held in press contact with a surface of a heat generating electronic circuit part mounted on the circuit board,

wherein a longitudinal cutout groove portion is provided in a forward end portion of the tongue held in press contact with the heat generating electronic circuit.

2. The shield case according to claim 1, wherein the tongue is held in press contact with the surface of the heat generating electronic circuit part through the intermediary of a heat transmitting material applied to the surface of the heat generating part.